.w-item>*:not(.w-tree){
    vertical-align: top;
}
.w-item [type="checkbox"]{
    appearance: none;
    -webkit-appearance: none;
    width: 0;
    height: 0;
    border: 6px solid transparent;
    border-left-color: #444;
    margin-right: -6px;
    box-sizing: content-box;
    cursor: pointer;
}
.w-item [type="checkbox"]:checked{
    margin-right: 0;
    border-left-color: transparent;
    border-top-color: #ccc;
    margin-top: 8px;
}
.w-item>.w-title{
    display: inline-block;
}
.w-item .w-item>.w-tree{
    display: none;
}
.w-item>:checked~.w-tree{
    display: block;
}
.w-item>.w-cursor{
    display: inline-block;
    width: 10px;
    height: 100%;
}
.w-item>.w-cursor::before{
    content: "";
    display: block;
    width: 100%;
    height: 2px;
    background-color: #555555cc;
    margin: 6px 0;
}
.w-item>.w-tree{
    margin-left: 20px;
    border-left: 1px solid #000000cc;
}
#template{
    display: none;
}
.w-item{
    user-select: none;
    -moz-user-select: none;
    -webkit-user-select: none;
}
#treeRoot{
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    width: 300px;
}
#treeRoot *{
    word-break: break-all;
}